/* ===== CSS Variables ===== */
:root {
  --bg-deep: #050508;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 255, 136, 0.3);
  --color-ink: #f0f4ff;
  --color-muted: #8892a8;
  --color-accent: #00ff88;
  --color-accent-2: #00d4ff;
  --color-accent-3: #a855f7;
  --gradient-main: linear-gradient(135deg, #00ff88 0%, #00d4ff 50%, #a855f7 100%);
  --font-display: "Orbitron", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Helvetica Neue", sans-serif;
  --header-height: 72px;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--bg-deep);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

strong {
  color: var(--color-accent);
  font-weight: 700;
}

/* ===== Background Effects ===== */
#particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.glow-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  animation: orbFloat 12s ease-in-out infinite;
}

.glow-orb--1 {
  top: -10%;
  left: -5%;
  width: 500px;
  height: 500px;
  background: rgba(0, 255, 136, 0.12);
}

.glow-orb--2 {
  top: 30%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: rgba(0, 212, 255, 0.1);
  animation-delay: -4s;
}

.glow-orb--3 {
  bottom: -5%;
  left: 30%;
  width: 450px;
  height: 450px;
  background: rgba(168, 85, 247, 0.1);
  animation-delay: -8s;
}

@keyframes orbFloat {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -20px) scale(1.05);
  }
  66% {
    transform: translate(-20px, 30px) scale(0.95);
  }
}

.page-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(5, 5, 8, 0.75);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
}

.header-brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  transition: opacity 0.2s;
}

.header-brand:hover {
  opacity: 0.85;
}

.header-logo {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

.header-brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.header-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.05em;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-subtitle {
  color: var(--color-muted);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 16px;
  border-radius: 999px;
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 600;
  transition: color 0.25s, background 0.25s;
}

.header-nav a::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width 0.3s;
}

.header-nav a:hover {
  color: var(--color-ink);
  background: rgba(255, 255, 255, 0.05);
}

.header-nav a:hover::after {
  width: 60%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-card);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  align-items: center;
  gap: 48px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 60px 0 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  padding: 8px 18px;
  border: 1px solid rgba(0, 255, 136, 0.25);
  border-radius: 999px;
  background: rgba(0, 255, 136, 0.06);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}

.hero-section h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(64px, 10vw, 96px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 40px rgba(0, 255, 136, 0.3));
}

.hero-lead {
  max-width: 560px;
  margin: 24px 0 0;
  color: var(--color-muted);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  margin-top: 36px;
}

#download-actions .download-action {
  display: none;
}

#download-actions .download-action.is-visible {
  display: inline-flex;
}

.download-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 56px;
  padding: 0 32px;
  border-radius: 14px;
  background: var(--gradient-main);
  color: #050508;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.02em;
  box-shadow:
    0 0 40px rgba(0, 255, 136, 0.35),
    0 8px 32px rgba(0, 0, 0, 0.4);
  transition: transform 0.25s, box-shadow 0.25s;
  position: relative;
  overflow: hidden;
}

.download-action::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), transparent);
  opacity: 0;
  transition: opacity 0.25s;
}

.download-action:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow:
    0 0 60px rgba(0, 255, 136, 0.5),
    0 12px 40px rgba(0, 0, 0, 0.5);
}

.download-action:hover::before {
  opacity: 1;
}

.hero-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 680px;
  margin: 40px 0 0;
  padding: 0;
}

.hero-point {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.hero-point:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 255, 136, 0.1);
}

.hero-points dt {
  color: var(--color-ink);
  font-size: 15px;
  font-weight: 800;
}

.hero-points dd {
  margin: 8px 0 0;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.55;
}

/* Hero Preview Phones */
.hero-preview {
  position: relative;
  min-height: 580px;
  isolation: isolate;
}

.preview-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 255, 136, 0.15);
  animation: ringSpin 20s linear infinite;
}

.preview-ring--1 {
  inset: 10% 5% 10% 5%;
  border-color: rgba(0, 212, 255, 0.12);
}

.preview-ring--2 {
  inset: 20% 15% 20% 15%;
  animation-direction: reverse;
  animation-duration: 15s;
}

@keyframes ringSpin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.preview-phone {
  position: absolute;
  overflow: hidden;
  width: 240px;
  border: 3px solid rgba(255, 255, 255, 0.12);
  border-radius: 36px;
  background: #0a0a0f;
  box-shadow:
    0 0 60px rgba(0, 255, 136, 0.15),
    0 30px 80px rgba(0, 0, 0, 0.6);
}

.preview-phone img {
  width: 100%;
  aspect-ratio: 9 / 20;
  object-fit: cover;
}

.preview-phone--front {
  right: 40px;
  bottom: 20px;
  z-index: 2;
  animation: floatFront 6s ease-in-out infinite;
}

.preview-phone--back {
  top: 20px;
  left: 20px;
  width: 210px;
  transform: rotate(-6deg);
  opacity: 0.85;
  animation: floatBack 6s ease-in-out infinite;
  animation-delay: -3s;
}

@keyframes floatFront {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-16px);
  }
}

@keyframes floatBack {
  0%,
  100% {
    transform: rotate(-6deg) translateY(0);
  }
  50% {
    transform: rotate(-6deg) translateY(-12px);
  }
}

/* ===== Sections Common ===== */
.section-tag {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.section-heading {
  display: grid;
  grid-template-columns: 0.4fr 1fr;
  column-gap: 40px;
  row-gap: 14px;
  margin-bottom: 40px;
}

.section-heading h2 {
  max-width: 600px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.section-heading p {
  grid-column: 2;
  max-width: 600px;
  margin: 0;
  color: var(--color-muted);
  font-size: 17px;
  line-height: 1.75;
}

.section-heading--row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

.section-heading--row h2 {
  text-align: right;
}

/* ===== Features ===== */
.feature-section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.section-heading--center {
  display: block;
  text-align: center;
  margin-bottom: 36px;
}

.section-heading--center h2 {
  max-width: 760px;
  margin: 0 auto;
}

.section-heading--center p {
  max-width: 760px;
  margin: 16px auto 0;
  grid-column: auto;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 56px;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 16px;
  border: 1px solid rgba(0, 255, 136, 0.22);
  border-radius: 999px;
  background: rgba(0, 255, 136, 0.06);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.feature-block + .feature-block {
  margin-top: 56px;
}

.feature-block-head {
  margin-bottom: 28px;
}

.feature-block-tag {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--color-accent-2);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.feature-block-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  line-height: 1.25;
}

.feature-block-head p {
  max-width: 720px;
  margin: 12px 0 0;
  color: var(--color-muted);
  font-size: 16px;
  line-height: 1.75;
}

.feature-grid {
  display: grid;
  gap: 18px;
}

.feature-grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-card {
  position: relative;
  min-width: 0;
  padding: 28px 24px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: transform 0.35s, border-color 0.35s, box-shadow 0.35s;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent, var(--color-accent));
  opacity: 0.8;
}

.feature-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--card-glow, rgba(0, 255, 136, 0.08)), transparent 70%);
  opacity: 0;
  transition: opacity 0.35s;
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--card-accent, var(--color-accent));
  box-shadow: 0 20px 60px var(--card-shadow, rgba(0, 255, 136, 0.15));
}

.feature-card:hover::after {
  opacity: 1;
}

.feature-card--mint {
  --card-accent: #00ff88;
  --card-glow: rgba(0, 255, 136, 0.12);
  --card-shadow: rgba(0, 255, 136, 0.2);
}

.feature-card--sun {
  --card-accent: #fbbf24;
  --card-glow: rgba(251, 191, 36, 0.12);
  --card-shadow: rgba(251, 191, 36, 0.2);
}

.feature-card--sky {
  --card-accent: #00d4ff;
  --card-glow: rgba(0, 212, 255, 0.12);
  --card-shadow: rgba(0, 212, 255, 0.2);
}

.feature-card--rose {
  --card-accent: #f472b6;
  --card-glow: rgba(244, 114, 182, 0.12);
  --card-shadow: rgba(244, 114, 182, 0.2);
}

.feature-card--purple {
  --card-accent: #a855f7;
  --card-glow: rgba(168, 85, 247, 0.12);
  --card-shadow: rgba(168, 85, 247, 0.2);
}

.feature-icon {
  position: relative;
  z-index: 1;
  font-size: 28px;
  margin-bottom: 16px;
}

.feature-card h4 {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: 18px;
  font-weight: 800;
}

.feature-card p {
  position: relative;
  z-index: 1;
  margin: 12px 0 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.7;
}

.feature-list {
  position: relative;
  z-index: 1;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 16px;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.8;
}

.feature-list li + li {
  margin-top: 4px;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--card-accent, var(--color-accent));
  box-shadow: 0 0 8px var(--card-accent, var(--color-accent));
  transform: translateY(-50%);
}

.platform-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 56px;
  padding: 24px 28px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(0, 255, 136, 0.06), rgba(0, 212, 255, 0.04));
}

.platform-strip-label {
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.platform-strip-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 18px;
}

.platform-strip-items span {
  color: var(--color-muted);
  font-size: 14px;
}

.platform-strip-items strong {
  color: var(--color-ink);
  font-weight: 700;
}

.sales-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-top: 56px;
  padding: 32px 34px;
  border: 1px solid rgba(0, 255, 136, 0.22);
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(0, 255, 136, 0.08), rgba(0, 212, 255, 0.05)),
    var(--bg-card);
  box-shadow: 0 24px 60px rgba(0, 255, 136, 0.08);
}

.sales-cta-copy {
  min-width: 0;
}

.sales-cta-copy h3 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.3;
}

.sales-cta-copy p {
  max-width: 720px;
  margin: 12px 0 0;
  color: var(--color-muted);
  font-size: 15px;
  line-height: 1.75;
}

.sales-cta-link {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 28px;
  border-radius: 14px;
  background: var(--gradient-main);
  color: #050508;
  font-size: 15px;
  font-weight: 800;
  white-space: nowrap;
  box-shadow: 0 0 30px rgba(0, 255, 136, 0.25);
  transition: transform 0.25s, box-shadow 0.25s;
}

.sales-cta-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(0, 255, 136, 0.38);
}

/* ===== Screenshots ===== */
.screenshot-section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 80px 0 100px;
  border-top: 1px solid var(--border);
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.screenshot-card {
  min-width: 0;
  text-align: center;
  transition: transform 0.35s;
}

.screenshot-card:hover {
  transform: translateY(-6px);
}

.screenshot-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.02);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
  transition: border-color 0.35s, box-shadow 0.35s;
}

.screenshot-card:hover .screenshot-frame {
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow:
    0 0 30px rgba(0, 212, 255, 0.15),
    0 20px 60px rgba(0, 0, 0, 0.5);
}

.screenshot-image {
  width: 100%;
  aspect-ratio: 9 / 19;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.5s;
}

.screenshot-card:hover .screenshot-image {
  transform: scale(1.05);
}

.screenshot-card h3 {
  margin: 14px 0 0;
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 600;
  transition: color 0.3s;
}

.screenshot-card:hover h3 {
  color: var(--color-accent-2);
}

/* ===== Footer ===== */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 32px 0 48px;
  border-top: 1px solid var(--border);
}

.footer-brand {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-copy {
  margin: 6px 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 600;
  transition: border-color 0.25s, color 0.25s, box-shadow 0.25s;
}

.footer-links a:hover {
  border-color: rgba(0, 255, 136, 0.4);
  color: var(--color-accent);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.15);
}

/* ===== Scroll Reveal ===== */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1100px) {
  .screenshot-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .hero-section {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 40px;
  }

  .hero-preview {
    min-height: 480px;
  }

  .preview-phone--front {
    right: 10%;
  }

  .preview-phone--back {
    left: 10%;
  }

  .section-heading {
    grid-template-columns: 1fr;
  }

  .section-heading p {
    grid-column: auto;
  }

  .section-heading--row {
    flex-direction: column;
    align-items: flex-start;
  }

  .section-heading--row h2 {
    text-align: left;
  }

  .feature-grid--3,
  .feature-grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .platform-strip {
    flex-direction: column;
    align-items: flex-start;
  }

  .platform-strip-items {
    justify-content: flex-start;
  }

  .sales-cta {
    flex-direction: column;
    align-items: flex-start;
  }

  .sales-cta-link {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .site-header {
    width: calc(100% - 28px);
    padding: 12px 0;
  }

  .header-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    background: rgba(5, 5, 8, 0.95);
    backdrop-filter: blur(20px);
  }

  .header-nav.is-open {
    display: flex;
  }

  .header-nav a {
    width: 100%;
    justify-content: center;
    padding: 12px;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-section {
    width: calc(100% - 28px);
    padding: 32px 0 56px;
  }

  .hero-points {
    grid-template-columns: 1fr;
  }

  .hero-preview {
    display: flex;
    justify-content: center;
    min-height: 0;
    padding: 20px 0;
  }

  .preview-ring {
    display: none;
  }

  .preview-phone {
    position: relative;
    width: 200px;
    max-width: 55vw;
  }

  .preview-phone--front {
    right: auto;
    bottom: auto;
    animation: floatFront 6s ease-in-out infinite;
  }

  .preview-phone--back {
    display: none;
  }

  .download-action {
    width: 100%;
    padding: 14px 20px;
    font-size: 15px;
  }

  .feature-section,
  .screenshot-section,
  .site-footer {
    width: calc(100% - 28px);
  }

  .feature-grid--3,
  .feature-grid--4 {
    grid-template-columns: 1fr;
  }

  .screenshot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links {
    width: 100%;
  }

  .footer-links a {
    flex: 1;
    justify-content: center;
  }
}